how many numbers between 200 and 500 are divisible by 13?
two racing cars can cover a circular track at rate of 10 and 15 laps per minute. if both the cars start at the same point, after what interval of time will they both again be at the starting point?
10 monkeys will eat 10 bananas in 10 minutes. how long will it take for 20 monkeys to eat 20 bananas?
a man was eemployed on the promise that he will be paid the heighest wages per day . the contract money to be paid was rs 185. he was finally paid rs 111 . for how many days did he actually work?